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        <h1 class="title">创建基于ES6的项目</h1>
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            <ol class="post-toc"><li class="post-toc-item post-toc-level-1"><a class="post-toc-link" href="#创建基于ES6的项目-babel"><span class="post-toc-number">1.</span> <span class="post-toc-text">创建基于ES6的项目(babel)</span></a><ol class="post-toc-child"><li class="post-toc-item post-toc-level-2"><a class="post-toc-link" href="#初始化项目"><span class="post-toc-number">1.1.</span> <span class="post-toc-text">初始化项目</span></a></li><li class="post-toc-item post-toc-level-2"><a class="post-toc-link" href="#安装依赖"><span class="post-toc-number">1.2.</span> <span class="post-toc-text">安装依赖</span></a></li><li class="post-toc-item post-toc-level-2"><a class="post-toc-link" href="#package-json的scripts中添加babel"><span class="post-toc-number">1.3.</span> <span class="post-toc-text">package.json的scripts中添加babel</span></a></li><li class="post-toc-item post-toc-level-2"><a class="post-toc-link" href="#执行index-js内容"><span class="post-toc-number">1.4.</span> <span class="post-toc-text">执行index.js内容</span></a></li><li class="post-toc-item post-toc-level-2"><a class="post-toc-link" href="#参考"><span class="post-toc-number">1.5.</span> <span class="post-toc-text">参考</span></a></li></ol></li></ol>
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<article id="post-create-project-based-on-es6-with-babel" class="post-article article-type-post fade" itemprop="blogPost">

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        <h1 class="post-card-title">创建基于ES6的项目</h1>
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            <time class="post-time" title="2018-07-17 21:00:00" datetime="2018-07-17T13:00:00.000Z" itemprop="datePublished">2018-07-17</time>

            
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            <h1 id="创建基于ES6的项目-babel"><a href="#创建基于ES6的项目-babel" class="headerlink" title="创建基于ES6的项目(babel)"></a>创建基于ES6的项目(babel)</h1><blockquote>
<p>首先感谢业界的很多大神，创造了很多的模版项目，成功的把我用成了傻逼。今天有个小的功能，使用<code>CRC</code>进行<code>checksum</code>校验，选择使用<code>node-crc</code>包，本来想写个小demo测试一下，结果发现<code>crc</code>全部使用es6语法进行构建，长期使用别人模版的我瞬间傻逼了。所以才有了这篇文章。</p>
<p><a href="https://github.com/jamiebuilds/babel-handbook/blob/master/translations/zh-Hans/user-handbook.md" target="_blank" rel="noopener">babel handbook 中文版</a></p>
</blockquote>
<h2 id="初始化项目"><a href="#初始化项目" class="headerlink" title="初始化项目"></a>初始化项目</h2><figure class="highlight shell"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br></pre></td><td class="code"><pre><span class="line">cd crc-demo # crc-demo自己的项目目录</span><br><span class="line">npm init</span><br></pre></td></tr></table></figure>
<h2 id="安装依赖"><a href="#安装依赖" class="headerlink" title="安装依赖"></a>安装依赖</h2><ul>
<li><p><code>babel</code>和目标运行环境依赖（es5）</p>
<blockquote>
<p>目标环境根据自己实际的环境定义，具体参考<a href="https://www.babeljs.cn/docs/plugins/preset-env/" target="_blank" rel="noopener">preset-env</a></p>
</blockquote>
<figure class="highlight shell"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br></pre></td><td class="code"><pre><span class="line"><span class="meta">#</span><span class="bash"> rimraf 用来删除文件的</span></span><br><span class="line">npm install babel-cli babel-preset-es2015 rimraf --save-dev</span><br></pre></td></tr></table></figure>
</li>
<li><p>创建 <code>.babelrc</code> 配置文件</p>
<blockquote>
<p>在crc-demo下添加<code>.babelrc</code>文件，参考<a href="https://www.babeljs.cn/docs/setup/#installation" target="_blank" rel="noopener">这里</a></p>
</blockquote>
<figure class="highlight javascript"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br></pre></td><td class="code"><pre><span class="line">&#123;</span><br><span class="line">    <span class="string">"presets"</span>: [</span><br><span class="line">        <span class="string">"es2015"</span> <span class="comment">// 环境和安装依赖的环境相关(babel-preset-es2015)</span></span><br><span class="line">    ]</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>
</li>
</ul>
<h2 id="package-json的scripts中添加babel"><a href="#package-json的scripts中添加babel" class="headerlink" title="package.json的scripts中添加babel"></a><code>package.json</code>的<code>scripts</code>中添加babel</h2><blockquote>
<p><code>src</code>目录的<code>js</code>文件会编译到<code>dist</code>中，每次编译之前都会先删除<code>dist</code>文件。</p>
</blockquote>
<figure class="highlight javascript"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br></pre></td><td class="code"><pre><span class="line">&#123;</span><br><span class="line">    <span class="string">"scripts"</span>: &#123;</span><br><span class="line">        <span class="string">"build"</span>: <span class="string">"rimraf dist/ &amp;&amp; babel src --out-dir dist/ --copy-files"</span>,</span><br><span class="line">        <span class="string">"start"</span>: <span class="string">"npm run build &amp;&amp; node dist/index.js"</span></span><br><span class="line">      &#125;</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>
<h2 id="执行index-js内容"><a href="#执行index-js内容" class="headerlink" title="执行index.js内容"></a>执行<code>index.js</code>内容</h2><figure class="highlight shell"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">npm run start</span><br></pre></td></tr></table></figure>
<h2 id="参考"><a href="#参考" class="headerlink" title="参考"></a>参考</h2><p><a href="https://www.cnblogs.com/weschen/p/7154284.html" target="_blank" rel="noopener">https://www.cnblogs.com/weschen/p/7154284.html</a></p>
<p><a href="https://www.babeljs.cn/docs/plugins/preset-env/" target="_blank" rel="noopener">https://www.babeljs.cn/docs/plugins/preset-env/</a></p>
<p><a href="https://www.babeljs.cn/docs/usage/cli/" target="_blank" rel="noopener">https://www.babeljs.cn/docs/usage/cli/</a></p>

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<div class="page-modal wx-share" id="wxShare">
    <a class="close" href="javascript:;"><i class="icon icon-close"></i></a>
    <p>扫一扫，分享到微信</p>
    <img src="" alt="微信分享二维码">
</div>




    <script src="//cdn.bootcss.com/node-waves/0.7.4/waves.min.js"></script>
<script>
var BLOG = { ROOT: '/', SHARE: true, REWARD: false };


</script>

<script src="//unpkg.com/hexo-theme-material-indigo@latest/js/main.min.js"></script>


<div class="search-panel" id="search-panel">
    <ul class="search-result" id="search-result"></ul>
</div>
<template id="search-tpl">
<li class="item">
    <a href="{path}" class="waves-block waves-effect">
        <div class="title ellipsis" title="{title}">{title}</div>
        <div class="flex-row flex-middle">
            <div class="tags ellipsis">
                {tags}
            </div>
            <time class="flex-col time">{date}</time>
        </div>
    </a>
</li>
</template>

<script src="//unpkg.com/hexo-theme-material-indigo@latest/js/search.min.js" async></script>






<script async src="//dn-lbstatics.qbox.me/busuanzi/2.3/busuanzi.pure.mini.js"></script>





</body>
</html>
